package com.atguigu.gulimall.product.service.impl;


import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuHasStockVO;
import com.atguigu.common.to.SkuReductionTO;
import com.atguigu.common.to.SpuBoundsTO;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.fegin.CouponFeginService;
import com.atguigu.gulimall.product.fegin.SearchFeginService;
import com.atguigu.gulimall.product.fegin.WareFeginService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService productAttrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeginService couponFeginService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeginService wareFeginService;

    @Autowired
    SearchFeginService searchFeginService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * //TODO 保存更多功能 在高级部分完善
     * @param vo
     * @author
     * @Description
     * @Date 17:02 2022/9/9
     * @Return void
     **/
    @Override
    @Transactional
    public void saveSpuInfo(SpuSaveVo vo) {

        //1. 保存spu基本信息 pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);

        //2. 保存Spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",", decript));
        //保存描述信息
        spuInfoDescService.saveSpuInfoDesc(spuInfoDescEntity);


        //3. 保存Spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(), images);


        //4. 保存Spu的规格参数 pms_product_attr_value

        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity productAttrValueEntity = new ProductAttrValueEntity();
            productAttrValueEntity.setAttrId(attr.getAttrId());
            AttrEntity attrEntity = attrService.getById(attr.getAttrId());
            productAttrValueEntity.setAttrName(attrEntity.getAttrName());
            productAttrValueEntity.setAttrValue(attr.getAttrValues());
            productAttrValueEntity.setQuickShow(attr.getShowDesc());
            productAttrValueEntity.setSpuId(spuInfoEntity.getId());
            return productAttrValueEntity;
        }).collect(Collectors.toList());

        productAttrValueService.saveProductAttr(collect);

        //5. 保存spu的积分信息 sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundsTO spuBoundsTO = new SpuBoundsTO();
        BeanUtils.copyProperties(bounds,spuBoundsTO);
        spuBoundsTO.setSpuId(spuInfoEntity.getId());
        R r = couponFeginService.saveSpuBounds(spuBoundsTO);
        if (r.getCode() != 0){
            log.error("远程保存SPU优惠，积分信息失败");
        }


        //5. 保存当前Spu对应的所有Sku信息


        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {

            skus.forEach(sku -> {
                String defaultImg = "";
                for (Images image : sku.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }

                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(sku, skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);

                //5.1 sku基本信息 pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imgs = sku.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();

                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    //返回true 就是选择  返回false  就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //5.2 sku图片信息 pms_sku_images

                skuImagesService.saveBatch(imgs);

                //5.3 sku销售属性信息 pms_sku_sale_attr_value
                List<Attr> attr = sku.getAttr();
                List<SkuSaleAttrValueEntity> saleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setAttrId(skuId);

                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(saleAttrValueEntities);

                //5.4 sku的优惠，满减等信息 sms_sku_ladder sms_sku_full_reduction sms_member_price
                SkuReductionTO skuReductionTO = new SkuReductionTO();
                BeanUtils.copyProperties(sku,skuReductionTO);
                skuReductionTO.setSkuId(skuId);
                if(skuReductionTO.getFullCount() <= 0 || skuReductionTO.getFullPrice().compareTo(new BigDecimal(0)) == 1 ){
                    R r1 = couponFeginService.saveSkuRediction(skuReductionTO);
                    if (r1.getCode() != 0 ){
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }








    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    /**
     *
     * @author
     * @Description
     * @Date 9:52 2022/9/13
     * @param params
     * @Return com.atguigu.common.utils.PageUtils
     **/
    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();

        Object key = params.get("key");
        if (!StringUtils.isEmpty( key)){
            wrapper.and(w ->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty( status)){
            wrapper.eq("publish_status",status);

        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);

        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catalog_id",catelogId);

        }


        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {

        //1.1查出当前spuid对应的所有sku信息，品牌的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //TODO 4.查询当前sku所有的可以用来被检索的规格属性 一个sku 只需要查询一边
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrIds =  attrService.selectSearchAttrs(attrIds);

        HashSet<Long> idSet = new HashSet<>(searchAttrIds);

        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());

        //TODO 1. 发送远程调用，库存系统查询是否有库存
        Map<Long, Boolean> map = null;
        try {
            R r = wareFeginService.getSkuHasStock(skuIdList);
            TypeReference<List<SkuHasStockVO>> typeReference = new TypeReference<List<SkuHasStockVO>>() {
            };
            map = r.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVO::getSkuId, item -> item.getHasStock()));
        }catch (Exception e){
            log.error("库存服务查询出现异常");
            e.printStackTrace();
        }



        //2封装每个sku的信息
        Map<Long, Boolean> finalMap = map;
        List<SkuEsModel> collect = skus.stream().map(sku -> {
            //1.需要组装的数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,esModel);
            //skuPrice,skuImg,
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());
            //hasStock,hotScore,brandName,brandImg,catelogName
            //设置库存信息
            if (finalMap == null){
                esModel.setHasStock(true);
            }else {
                esModel.setHasStock(finalMap.get(sku.getSkuId()));
            }


            //TODO 2. 热度评分。 默认0  但是可以设置
            esModel.setHotScore(0L);

            //TODO 3. 查询品牌和分类名字信息
            BrandEntity brand = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brand.getName());
            esModel.setBrandImg(brand.getLogo());
            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatelogName(category.getName());
            //设置检索属性
            esModel.setAttrs(attrsList);

            return esModel;
        }).collect(Collectors.toList());

        //TODO 5. 将数据发送给es进行保存  检索服务
        R r = searchFeginService.productStatusUp(collect);
        if (r.getCode()  == 0){
            //成功
            //TODO 6.修改当前spu的状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            //失败

            //TODO 7.重复调用？接口幂等性
            /*
             * 1. 构造请求数据，将对象转换为json数据
             *      RequestTemplate template = this.buildTemplateFromArgs.create(argv);
             * 2. 发送请求进行执行（执行成功，并解码响应数据）
             *      executeAndDecode(template, options);
             * 3. 执行请求会有重试机制
             *      while(true){
             *          try{
             *              executeAndDecode(template, options);
             *          }catch(){
             *              try{
             *
             *                  continueOrPropagate(e);
             *              }catch(){
             *                  throw ex;
             *              }
             *              continue;
             *          }
             *      }
             */
        }
    }


}